Automatic railroad gate



May 29., 1928'. 1,671,873

H. M. PURDY' AUTOMATIC RAILROAD GATE Filed J I N VEN TOR.

HerZer'LM-Purdy,

ATTORNEY' H. M. PURDY AUTOMATIC RAILROAD GATE May 29, 1928.

3' Sheets-Sheet 2 Filed Jan. 13. 1928 EN VEN TOR BY flerleriflfurdy,

. ATTORNEY.

May 29, 192&

' H. M. PURDY AUTOMATIC RAILROAD GATE File d Jan. 13, 1928 3 SheetS--Sheet 3 are my INVENTOR. HerbeftM-Pmd,

ATTO EY.

ing a pair of gate members and operated by e Patented May 29, 1928.

nnnnnnr m. runny, or MADISON, assassin.

UTOMATIC RAILROAD earn.

Application minimum 13, 1928. Serial No. Mans.

This invention relates to a railway. crossing closing mechanism, and hasfor its object to provide, in a manner as hereinafter set forth, amechanism of such class includa train when approaching a crossing toposition the ate members in a manner to close the crossing to preventvehicles or pedestrians from travellin over the'tra'ck until the trainhas cleared t e crossing, under such conditions reducing accidents to aminimum. A further object of the invention is to rovide, in a orth, aspring controlled railway'crossing closing mechanismoperated by a trainwhen approaching the crossing for closing the lat ter and maintained inposition to prevent the vehicles or pedestrians from travelling acrossthe track until the train has cleared the crossin whereby thepossibility of accidents is re uced toa minimum.

Further objects of the invention are to provide, in' a manner ashereinafter set forth, a spring controlled railway crossing closingmechanism' which is comparatively simple in its construction, strong,durable,

thoroughly'eflicient in its use, automatic in its action, readilyinstalled with respect to a track and crossing, and comparativelyinexpensive to set up. i

With theforegoing and other objects in view the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more speci cally described, and illustrated in theaccompanying drawings, wherein is shownan embodiment of the invention,but itis to be understood that changes, variations and modifications canbe resorted to which fall within the scope of the claims hereuntoappended.

In the, drawings wherein like reference characters denote corresponding]parts throughout the several views:

Figure 1 is a top plan view of a railway track, partly broken away,showing the adaptation therewith of a spring controlled railway crossinclosing mechanism in accordance with this invention and with themechanism also broken away.

, Figure 2is a view similar to Figure 1 in side elevation.

Figure 3 is a fragmentary view in side elevation and upon an enlargedscale illustrating the spring controlled pull elements of the gatemembers shifting cables. 1

Figure 4 is a section on line 4-4 Figure 1.

manner as hereinafter set Figure 5 is a fragmentary View in elevationillustrating a pair of pulleys for a shift ingcable and a support forthe pulleys.

Figure 6 is a fragmentary view in top plan, partly in section, of thecable pulling means.

Figure 7 is a fragmentary view in per spective of the depressible springcontrolled pull membersiforthe gate members shifting cables. V

Referring tothe drawings in detail 1 and 2 denote a pair of trackrailsproviding a railway track and 3 indicates a crossin Adacent theouterside of each of the trac rai is arranged a hinged gate member and whichare indicated at4, 5. The hin 'es of each ofthe gate members areindicate at 6. The gate members are normally ina flat position relativeto the crossing 3, and when the mechanism is operated by a train, the

ate members are shifted to vertical position or substantially tovertical position and such arrangement of the gate members will closethe crossing. The gate members will be arranged in closing position withrespect to the "crossing 3 until after the train has clearedthecrossing. The gate member 4 at one outer corner thereof is providedwith an eye 7 and the gate member 5 at one outer corner thereofijsprovided with an eye 8 and to saideyesare connected shifting cableswhich are employed for elevating or swinging the gates 4, 5' to verticalposition. The gates 4:,

5 return to normal position by gravity when the pull upon the gateshifting cables is released. The gates' l, 5 are simultaneously operatedto closing position with respect to the crossin The is connecte to theeye 7 of the gate member .4 is indicated at 9 and the gate shiftingcablewhich is connected to the eye 8 of the gate member 5 is'indicated at 10.That part of the "crossing3 atthe' track can be formed of platform oranysuitable, material, and cut away at 11, 12 for the reception of thegate members 4, 5 when these latter are in inactive position and thehinges 6, that is the inner leaves thereof are anchored to the platform.The gate membersi, 5 are of a length to close the crossing 3 to anextent to gate shifting cable which prevent the passage thereover, atthe track,

of pedestrians and vehicles. The width of each of the gate members 4, 5can be as desired. h

Mounted appropriate on'the ties 13, at a point an distance from one sideof the port 14 is a depressible pull member 2 are arranged in verticellydisposed openings, 18 and in; each opegi 18 is sepuredthe lower endofQ-ae t tie l disPQmdwm n gu d n taming rod 20. the traek rail and l progressively increase in lig g ht fro n the outer to inner end of 9. 6215. l' h p" 4 w ppgrt, 15 is a depress bl ini mtm tfi he p ll. m mbers21, 2 .t2ttend t. s. pwar z tlin ti n fromth i "Hts; 9. the nltsr n uppts t, Thsn ter qdi t h pull member, s 1 forn edyqith alenthwiseezgtending S10E23. edistslxpyltnmm i r is pp i d nt s rer w tyttrtqk ail Th nul mem ers te p ,es ytgu ds i x h r d 0, ut r also nntsined irrplosepgsition to thetraek A lx ist l 0, d ut m t. Pull"tenths? is, lids .t onn t 1 ains he t er ade Qfithttbe ft th t k. wit ad f n f i ipur asestbs tZflt s us awi h c rail, and H extends merg revat surest 8 ti t titrt it ended, bloe 't26 forme ,Wilii i) y disposed,

l fi p mbers are i qm e te iz y h el :1 Th ms ipp rend 25 mm t pattd;,t:. nu l mtm etw? 4 t i ,P- IQS kZQ' Theute end. 1 i he bl 'th. 26 s grsd- 94 l h set t tefi ten ta. 2 P ue de r t meow eel Oval, h e lot. .0-etitedii h a 7 s: qmbi tdt ttr l we a; psl fiwe ngtl vtihe bl tkfls. THINE 1 11 11 Peres. s ure i t 2b a bolt 3 and t e latter extends. tw gh'si ved 25; tf th t ll. ms berfi h ewe etehe l tk; 26- is e d t Witht;totkttv a s ernd 9f; he ring. J 1? The. ott m dge the RPPHH end lo,the ime{nberj2;1 seats ectly upon h 9k he ett m edg 0 th ype ntlfl' fi g mtmet 2 tate s me blpckfifig" The redyged. gupp'erpnds ot the pull membersform shoulders or stops 34, which zibut against the sides of the block326,; wh rebyv the, letter is retained between the Pull. member -'5 h qa p s n. of

Ptli m i r .t ettt r d ttt l e s .I :14 toililit can cant on The rods 20are spacedjrom ,i h

diamete h ltbe. n th. hew

pull members issuch asto extend above the tread of the track railfromthe outer to the inner ends of such members. The inner endsof saidmembers are the upper ends thereof. The extna'e or elevated position ofthe pull members is had by and against the action of the controllingspring 31. The Pll lLllitQQllbgFFflTQflH ed and depressed by the treadsoi the W at of the rolling stock ayell 1W 11 h '&fl fi; l

S tlt Y nd pivo nllymwwsc di o he xtension b turstnt d n r 1 e d car yiga p n 6, h i ni ierrendfi Qt bst qn r dd es svs te t mnd he put wrx'tends htei gl he SM 30 fi med h ehv ltt jng zmtwp a 1 null ve 14 avng.

1 t m 996 il h ever. endi lietexttls vnflh. Rosi mned; wi r t snotrpirit h upmttsl 5 s amino w prim 4 stand rd tethip widt t s imm r; ndith A ttin A he he tliteidmqiwt d the pull lever 34}.

htsinisltp yott r br enivn tat -pos tioned;

e wast i th mp d a i t thepu stantia y in 8, he pp st 'i rpt s r m er? hm ttr wi a g es w th. sp o he ,pull

with t ate member thermore Y yided a its l0" 6 a grooved gi illeylfid4931151 591 aredjs osed at right apg smi h p l th, i n s h rac t limtremt th-- the putt eableifianfl, ,brapket lj c opgrates with the pu hop1e10," The ca les tr \I'el und r t ys carried b the braol ets'il'fti dfl hglfp ulleysfia carried by the, .bra'pkgts 47; andgoyerg the pulleys49 carried by the braekets46f 41; nwsmxtendt tMsstcz. ember 1."

,1 in; m tr -(Pam f: tpr s bls P l e bers are t w td r h rolling stockst spun; otters 34 are" moved h iryp iv ts' Amt. we; wh rtb i, th

t1 ltyttfi s n et t er .mtm r 2 2 9 4. tr ti ssdr ubn iwl sh: q ldr n 'fr'sfl l l PMIIQYPUU everfiit. m n ed atkins tr i tt i: tw p i t Plat:

y m l a h r, he: 3 t t the 9 41 tabs hyme r e-emirate e g 4, ss snett tltxht y 4 f 1 he n l IBYFFL Md, e R1111 qr mt ts. with h sst ey 0,-Qfthe;plat rm 31%:

'llp Standings a 1 8 1-- U Y' at i t WP i h 1 r qr tl, P nd s-1 thbtstit l f .POP 40m wheels hs sit ely therein, and the gate members willthen I automatically move to inactive positio by gravity.

The mechanism provides means for shifting the gate members,automatically to active position, as a train approaches the crossing andthe gate members will remain in such position until the wheels of thetrain clear the pull members, after which the gate members will assumetheir normal or inactive position. a

When the mechanism is employed in con nection with a single track, amechanism will be arranged adjacent each side of the road crossing, onemechanism to be actuated when the train is travelling in one directionand the other mechanismvactuated when the train is travelling in theopposite direction. The mechanism can also be arranged in a manner to beused in connection with a double track.

It is thought the many advantages of a crossing gate closing mechanism,in accordance with this invention, can be readily understood andalthough the preferred embodiments of the invention are as illustratedand described, yet it is to be understood that changes in the details ofconstruction can be had which will fall within the scope of theinvention as claimed.

What I claim is:

1. A railway crossing gate closing mechanism comprising a pair of hingedgate members normally in a lowered position,

pull cables connected therewith for elevating said members, a pair ofspring controlled suspended blocks, a pair of oppodisposed normallyelevated pull members connected at their inner ends to each of saidblocks and adapted to be depressed by the wheels of a train, a pulllever extending from and pivotally and slidably connected to each block,and means for connecting said pull cables to the outer ends of saidlevers whereby when said pull members are depressed the pull cables willbe drawn in a direction to elevate the gate members.

2. A. railway crossing gate closing mechanism comprising a pair ofhingedgate members normally in a lowered position, pull cables connectedtherewith for elevating said members, a pair of spring controlledsuspended blocks, a pair of oppositely disposed normally elevated pullmembers connected at their inner ends to each of said blocks and adaptedto be depressed by the wheels of a train, a pull lever extending fromand pivotally and slidably connected to each block, means to each block,means for connecting said pull cables to the outer endsof said leverswhereby when said "pull members are depressed'the pull cables will bedrawn in a direction to elevate the gate members, and a set of groovedpulleys for each of said cables.

3. A railway crossing gate closing mechanism comprising a pair of lungedgate members normally in a lowered position, pull cables connectedtherewith for elevating said members, a pair of spring controlledsuspended blocks, a pair of oppositely disposed normally elevated pullmembers connected at their inner ends to each of said blocks and adaptedto be depressed by the wheels of a train, a pull lever extending fromand pivotally and slidably connected for connecting said pull cables tothe outer ends of said levers whereby when said pull members aredepressed the pull cables will be drawn in a direction to elevate thegatemembers, and a set of grooved pulleys for each of said cables, oneof the pulleys of each set ositioned above the remaining pulleys o theset.

4. A railway crossing gate closing mechanism comprising a pair of hingedgate bers normally in a lowered position,

pull

mem-

cables connected therewith for elevating said members, a pair of springcontrolled suspended blocks, a pair of oppositely disposed normallyelevated pull members connected at their inner ends to each of saidblocks and adapted to be depressed by the wheels of a train, a pulllever extending from and pivotally and slidably connected to each block,means for connecting said pull cables to the outer ends of said leverswhereby when said pull members are depressed the pull cables will bedrawn in a direction to elevate the gate members, and means for slidablyconnecting the outer end of each of said pull members to a track rail.

5. A railway crossing gate closing mechanism comprising a pair of hingedgate members normally in a lowered position, pull cables connectedtherewith for elevatin said members, a pair of spring controllesuspended blocks, a pair of oppositely disposed normally elevated pullmembers connected at their inner ends to each of said blocks and adaptedto be depressed by the wheels of a train, a pull lever extending fromand pivotally and slidably connected to each block, means for connectingsaid pull cables to the outer ends of said levers whereby when said pullmembers are depressed the pull cables will be drawn in a direction toelevate the gate members, a set of grooved pulleys for each of saidcables, and means for slidably connecting the outer end of each of saidpull members to a track rai hers normally in a isaidmembers, a

suspended blocks, a, posed normally blocks and adapted wheels ofa,train,. from i and, pivotally to, each block, m ea elevated or eleva i pq' fip i e c ntr j 1 pair of oppositely (lis-. pull members l pnw nectedat their inner endsto each of, said to be depi'essed,by the a pullleverextendi anclslidahly connect ate closing mech w i e t o i o 1.

ture hereto. n s fol: connecting said pull cables to the outer ends ofsaidlevers whereby when said poll members are de pressed thepull cahleswill be drawn ine 15 vate thegate members, aset of grooveipu leys foreach offsaid ca h lifi one of; the pulleys of set position above theremaining pulleys of the -pset an d. means for slidalily conqecting theouter endeo of each of said pullmemhel sto a track rail. In testimonywhereof, I aflix my signa- HERBERT: M.. PURDY,

